#linuxcnc | Logs for 2012-06-23

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[00:21:05] <andypugh> As far as I could make out. delkin popped in, made a random statement in Galacian, and disappered 90 minutes later.
[00:21:44] <andypugh> Ah, no, I missed an inexplicable change in nick.
[00:24:04] <andypugh> By the way, there are two new/unused parker servo drives on eBay at 99p. Could be a bargain to be had there: http://www.ebay.co.uk/itm/120932197261
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[01:25:42] <Tom_itx> andypugh i hate it when that happens
[01:26:20] <andypugh> What?
[01:26:38] Tom_itx is now known as changemynicktoso
[01:26:50] changemynicktoso is now known as Tom_itx
[01:27:06] <Tom_itx> makes it hard to follow
[01:27:52] <Tom_itx> your nick should be given at birth and follow you your entire life
[01:30:00] <andypugh> But then you would be Tom_Z80
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[01:30:31] <Tom_itx> life was much simpler
[01:30:39] <Jymmm> s/z80/abacus/
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[01:37:32] <andypugh> I was suddenly overcome by an urge to have one of these: http://en.wikipedia.org/wiki/Research_Machines_380Z
[01:37:45] <andypugh> But luckily there were none on eBay.
[01:38:13] <andypugh> "High resolution: 320×192 pixels, 2 bits per pixel, 1 page." Ah, those were the days!
[01:38:34] <Jymmm> andypugh if you had an urge to get one of those, please do me a favor and STOP SNIFFING THE DRAIN CLEANER!
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[01:39:21] <andypugh> First computer I ever saw, that was. I wasn't allowed to touch it, of course, it was the special province of the chemistry teacher.
[01:39:35] <Jymmm> =)
[01:39:59] <Jymmm> travel 0.5" lol http://www.ebay.com/itm/Star-Linear-System-Linear-actuator-Slide-w-SMC-Cylinder-/150754938464?pt=LH_DefaultDomain_0&hash=item2319b1ce60
[01:40:30] <Tom_itx> i had a math teacher that felt the same way about his first HP calculator
[01:40:51] <Jymmm> Hell, I STILL feel that way about my HP Calculator =)
[01:41:18] <Tom_itx> with the LED display?
[01:41:36] <Jymmm> http://en.wikipedia.org/wiki/HP-20S
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[01:42:37] <andypugh> Jymmm: It's pneumatic. I have no idea what it is for.
[01:43:49] <Jymmm> When I was calibrating laser modules, when had this huge as formula we had to do every day to calibrate the equipment. If was painfully slow on TI Calcs too. I got that, programmed the formula and was damn fast too =)
[01:43:58] <Jymmm> s/as/ass/
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[01:49:39] <andypugh> I still use: http://www.rskey.org/CMS/index.php/7?manufacturer=Casio&model=fx-3400P
[01:50:24] <andypugh> I have long since forgotten how to program it though.
[01:51:10] <andypugh> And the kcal button got ripped off during an over-zealous attempt to clean it. But then I never worked out what that button was for.
[01:51:46] <Jymmm> Tom_itx: Actually, my *VERY* first calculator was given to me and it was LED with a rechargable battery pack.
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[01:52:37] <Tom_itx> i still can't find my HS slide rule
[01:52:43] <Tom_itx> used in HS that is
[01:53:42] <andypugh> I never used one. I sometimes wish I knew how.
[01:53:43] <Tom_itx> i'm not sure i'd remember how to use it now
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[01:54:13] <andypugh> http://itunes.apple.com/gb/app/slide-rule/id288454455?mt=8
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[02:18:28] <andypugh> jthornton: I am looking for the translator guidelines, but can't find any as good as I think I have seen in the past. Any pointers?
[02:18:47] <andypugh> This would be for the spanish chap who jus popped up
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[02:50:36] <andypugh> It bothers me when folk buy the wrong hardware after not asking for advice.
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[02:51:14] <Tom_itx> not that i need them yet but that's where i'm at with servos and servo controllers
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[03:00:49] <andypugh> Well, yes, but I imagine you would ask before getting the card out?
[03:01:24] <Tom_itx> definitely
[03:01:45] <Tom_itx> sometimes you gotta grab stuff when it's there though
[03:02:19] <Jymmm> thats NOT what she said =)
[03:02:39] <Jymmm> (but we wish it was =)
[03:02:45] <Tom_itx> maybe you need to hang with a different crowd :)
[03:03:31] <Tom_itx> naw that's probably true across the board
[03:04:49] <Jymmm> IF you could, would you want to join a commune today?
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[03:08:00] <andypugh> I think sserial might be working again. (I have really hacked it about)
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[03:09:08] <andypugh> So, that seems like a good time to sleep
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[03:09:50] <Tom_itx> i'm about there myself
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[05:14:09] <gesparza1> Hi All. I'm trying to get some advise on wether i should use openfiler, freenas, or centos for an iscsi home server
[05:14:33] <heathmanc> i used freenas for awhile and really liked it
[05:14:42] <heathmanc> but in the end, ended up with windows server 2008
[05:14:57] <heathmanc> with some nfs extensions
[05:15:01] <gesparza1> its going to have 4 2tb drives and is going to be used with noth my esxi server
[05:15:12] <gesparza1> i need to use iscsi
[05:15:22] <heathmanc> if it's only going to be esxi, then i recommend freenas
[05:15:59] <heathmanc> the iscsi implementation is fairly straightforward
[05:16:10] <gesparza1> i see
[05:16:32] <gesparza1> can freenas be installed on usb flash drive?
[05:16:42] <heathmanc> yes, as far as i remember
[05:16:50] <gesparza1> sweet
[05:17:20] <heathmanc> not sure how the iscsi works in esxi, i used xenserver and liked it better
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[07:59:26] <DJ9DJ> moin
[08:08:15] <Loetmichel> mornin'
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[10:55:46] <Jymmm> andypugh: !!!
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[11:03:57] <jthornton> Jymmm, is my web site gnipsel.com down for you?
[11:05:00] <Jymmm> jthornton: yeah
[11:05:13] <Jymmm> it's trying though, might be overloaded
[11:05:40] <jthornton> overloaded?
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[11:06:20] <Jymmm> jthornton: Is that your box or hosted?
[11:06:28] <jthornton> hosted
[11:06:43] <jthornton> I can't connect via filezilla either
[11:06:58] <jthornton> Error: Could not read from socket: ECONNRESET - Connection reset by peer
[11:07:01] <Jymmm> Well, is another hosted client has a script running amok it'll overload theserver
[11:07:24] <Jymmm> s/is/if/
[11:07:30] <jthornton> ok
[11:13:04] <Jymmm> it's responding to icmp traffic, but that's about it.
[11:13:24] <Jymmm> jthornton: Hello india tech support...
[11:22:31] <Jymmm> jthornton: This should help http://www.youtube.com/watch?v=N38a5ja26xY
[11:25:00] <jthornton> no speakers on this pc
[11:25:31] <Jymmm> k
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[11:54:25] <Tom_itx> jt, it's working here
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[12:01:01] <jthornton> Tom_itx, it's back for me too... must have been a glitch in the hosting site
[12:01:10] <jthornton> thanks for checking
[12:02:45] <Tom_itx> jthornton, how'd you come out on your phase inverter or psu issue?
[12:04:39] <jthornton> I have learned a lot about my rotary phase converter and have it tuned to within 1 volt between phases when the VMC is running... which requires me to run the Samson spindle while doing so
[12:05:03] <Tom_itx> needs to be loaded?
[12:05:27] <jthornton> the 15kw generator I now have is getting a few changes to upgrade the distribution panel then I will try it to see what the difference might be
[12:05:55] <jthornton> it seems to be more stable when another 3 phase motor is running
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[12:12:13] <Tom_itx> maybe you outta get a spare 3 phase motor and just let it sit beside the VMC running
[12:13:17] <JT-Shop> I have a 15hp motor that I just put new bearings in to hopefully make it a bit more quiet when it runs and it has a 6 groove v-belt pulley on it so lots of rotating mass
[12:15:15] <JT-Shop> I just need to wire up a contactor with start and stop buttons and it's ready to fly
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[13:51:19] <jthornton> skunkworks__, seems the stepconf file is an xml file too
[13:51:50] <andypugh> Yes. I thought that was well known?
[13:52:37] <jthornton> I've never looked at one...
[13:52:51] <andypugh> It might even be possible to make stepconf open a Mach3 config, thinking about it.
[13:53:00] <jthornton> I'm looking at writing a python converter from mack to stepconf
[13:53:13] <jthornton> or that maybe
[13:53:39] <jthornton> the mack one is huge, like 15,000 lines long
[13:54:21] <jthornton> the funny thing is you can't set step time and step space or dir setup and dir hold in mack
[13:55:27] <jthornton> the only option is step pulse and dir pulse and your choices are 1-5 us
[13:56:49] <jthornton> I don't understand the md5sums property in the stepconf... but I think it is how stepconf checks to see if a file was modified
[13:57:26] <andypugh> Maybe also testing for corruption
[13:58:07] <andypugh> It might well be easier to make the stepconf config reader understand the Mach format too.
[13:59:11] <jthornton> if I try to load a file without the md5sums property I get an error AttributeError: Data instance has no attribute 'md5sums'
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[14:08:12] <andypugh> I suspect it might be possible to modify self.data.load to read attributes from a Mach XML. I think some kind of translation structure would be needed.
[14:17:57] <JT-Shop> what would the translation structure look like?
[14:18:33] <JT-Shop> I know that things like <Motor0StepPin> are easy to sort out
[14:18:56] * JT-Shop hates taking rubber tape off of spit nuts :/
[14:21:25] <archivist> grr Mondeo wheel bearing changing
[14:26:31] <jthornton> interesting the files don't have to be there for md5sum, just a complete xml file
[14:27:28] <jthornton> and when saved it will create all the files
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[14:50:51] <andypugh> I assume it is an Md5 just for the xml
[14:51:39] <andypugh> JT-Shop: And I have no idea how to set up a translation, Python is a mystery to me.
[14:54:05] <JT-Shop> andypugh: I think I can make python translate from the mack xml to the stepconf xml file
[14:54:35] <JT-Shop> I think standalone would be best to start
[14:55:09] <andypugh> Maybe, though I think you would be re-inventing the wheel a lot.
[14:55:18] <JT-Shop> the md5sum has the path and file names of the ini, the hal and the readme file
[14:55:27] <JT-Shop> hows that?
[14:55:56] <andypugh> It isn't the .stepconf file that matters, it is getting the information into stepconf, and that could probably be done from either file format.
[14:56:28] <JT-Shop> the .stepconf file is all you need to get the info into stepconf
[14:57:03] <andypugh> Yes, and I assume all the same data is in the mach file?
[14:57:27] <JT-Shop> so I read the info from the mack file then write it to a .stepconf file
[14:57:42] <JT-Shop> all the data and a ton more
[14:57:50] <andypugh> I am saying, why not let stepconf write it to the stepconf file?
[14:58:08] <JT-Shop> I've already worked out the code to read the mak xml file
[14:58:14] <andypugh> I assume the Mach file includes their macros too?
[14:58:22] <JT-Shop> dunno
[14:58:50] <JT-Shop> it contains the whole config I know that
[14:58:59] <JT-Shop> and is 15k lines
[15:01:23] <JT-Shop> would having a one shot seldom used import of a mak file into stepconf complicate stepconf?
[15:02:15] <andypugh> A bit.
[15:03:00] <JT-Shop> I'm sure glad to see you answered Todd's question...
[15:03:23] <andypugh> It would depend how big it was, I guess. But it would make things much easier for folk who are deomstrably a bit dim (albeit that they must be cleverer than the ones who stay with Mac(
[15:03:46] <JT-Shop> LOL, yes I agree
[15:04:16] <andypugh> I have never worked out where those drives expect to get their commutation from. Possibly rectified resolver output.
[15:05:22] <andypugh> But that only gives 1 quadrant, so it can't be that, thinking about it.
[15:05:55] <JT-Shop> ok, I don't have a clue on that
[15:17:10] <A0Sheds> Anyone know a good source for steam powered electric generators? We have 50M BTU/hr that we could partially reclaim
[15:17:54] <andypugh> High pressure. low pressure, dry, wet?
[15:18:07] <A0Sheds> 130psi wet
[15:19:10] <andypugh> Do you really mean 15 MegaWatts?
[15:19:21] <A0Sheds> ~360 Deg F is the discharge temp
[15:19:34] <A0Sheds> yeah ~16MW
[15:19:59] <andypugh> Wow. That's worth reclaiming, definitely
[15:20:31] <A0Sheds> yeah, they are considering a cooling tower that draws 2000A of power @ 480VAC, and upwards of 40gal/min of fresh water
[15:20:36] <A0Sheds> crazy
[15:21:05] <andypugh> But I don't think you are talking in terms of a small reciprocating engine there, which was my initial thought.
[15:21:15] <A0Sheds> 3 acre pond is also nearby to dump cooled waste water
[15:22:11] <A0Sheds> they were asking me about air cooling the steam first to liquid and then counting on the pond to drop it to 70 deg F
[15:22:45] <A0Sheds> it would need something like 1000 sq m of radiator to cool it
[15:23:50] <A0Sheds> reclaiming should cost similar to the cooling tower but actually make money by selling the power back to the power co
[15:24:06] <andypugh> http://www.geeltd.org/biomass-boilers/steam-micro-turbine
[15:24:09] <andypugh> Maybe.
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[15:24:26] <A0Sheds> its for multiple autoclaves to cure a fiber cement product
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[15:24:31] <andypugh> Though I don't think you are really talking about a micro-turbine there.
[15:24:52] <A0Sheds> this could power a small town
[15:25:10] <A0Sheds> cargo ship size turbine
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[15:27:33] <JT-Shop> coastal freighter or crude carrier size?
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[15:27:42] <taiden> ello gents
[15:28:08] * JT-Shop wonders if is a trick question
[15:28:27] <taiden> totally a trick question because i'm about to bombard you all with questions on your day off
[15:29:24] <A0Sheds> http://www.utilitywarehouse.com/info1/steamturbinegenerator.html#11MW off the shelf
[15:30:40] <andypugh> A0Sheds: I found http://www.corponit.com/steam-turbine-generators.htm which have a 15MW _condensing_ turbine which sounds almost ideal.
[15:31:19] <A0Sheds> andypugh, thanks!
[15:32:13] <andypugh> Seems to be in India. But this soundsl like a proper industrial-sozed project so that's probably not a problem
[15:34:29] <A0Sheds> for a $1-2M generator the shipping costs are within budget
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[15:41:10] <A0Sheds> why spend the money to cool the steam vs make electricity and make money?
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[15:49:05] <A0Sheds> in this area 15,000kWh is ~$1200
[15:50:07] <andypugh> Probably more than the wage bill/
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[15:54:25] <taiden> so i wrote a gcode program to cut a series of bores that use the same common center point
[15:54:41] <taiden> i wrote the program such that all the numbers were the radius of the bores
[15:54:59] <taiden> i went to use tool compensation so i didn't have to go through the program subtracting tool radius
[15:55:23] <taiden> but now every time i go to run it, it says something about the tool gouging
[15:55:33] <taiden> i ran the program without tool comp and there was no interference or cutter issues
[15:55:38] <taiden> probably a mistake on my part
[15:56:12] <andypugh> What are the bore radius and the tool radius?
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[16:15:25] <JT-Shop> taiden: what kind of entry move do you have into your arc?
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[16:16:24] <JT-Shop> of course I assume you have memorized this page on cutter comp http://linuxcnc.org/docs/html/gcode/tool_compensation.html#sec:cutter-compensation
[16:17:18] <mikegg> http://houston.craigslist.org/tls/3067468115.html
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[16:19:35] <taiden> is there some way for me to share the text on here
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[16:19:42] <taiden> tool is .25" end mill
[16:19:52] <taiden> bores range from 1.5 to ~2"
[16:20:15] <taiden> radius center is at X0 Y0 and i use X0 Y0 Z0.5 for my safe "zero"
[16:20:31] <taiden> and i feed with G1 X(bore radius) Y0 Z0
[16:20:37] <taiden> then do my G2
[16:20:47] <taiden> which is a helical downwards bore
[16:21:58] <taiden> i've made the program work by just changing all the values but i will be doing much more work with this program so while it works now i'd like to get this figured out so i can make changes without much brain power
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[16:23:02] <JT-Shop> taiden: pastebin.ca
[16:23:10] <taiden> right forgot about that, one sec
[16:24:22] <JT-Shop> taiden: have you seen my counter bore subroutine for ngcgui?
[16:26:05] <taiden> http://pastebin.com/DasZtFaf
[16:26:18] <taiden> the program works incredibly well and demolishes anything any free cam program came up with for me
[16:26:30] <taiden> if i can get the tool offset figured out it will be perfect enough
[16:26:42] <taiden> i have not seen it
[16:27:17] <taiden> also in that version i have tool comp turned off because it was broken
[16:27:34] <taiden> but that is the file that was causing errors with that set to g42
[16:28:07] <JT-Shop> http://linuxcnc.org/index.php/english/component/kunena/?func=view&catid=40&id=20659
[16:28:59] <taiden> neat
[16:29:02] <JT-Shop> where did you start the cutter comp?
[16:29:04] <taiden> does it pocket the entire hole?
[16:29:21] <taiden> where that one says G40 with the comment is where it was G42
[16:29:22] <JT-Shop> that one just does the od of the hole
[16:29:40] <JT-Shop> but the one on the wiki does a spiral out to the OD
[16:29:57] <taiden> yeah that's unecessary for this part
[16:30:05] <taiden> so your method would work fine
[16:30:39] <taiden> i feel so accomplished... pycam and heeks were giving me a 30-40 minute cut time with poor results
[16:30:42] <JT-Shop> I see the G40 line but not the G42 start
[16:30:49] <taiden> this has given me a 4 minute cut time with nice results
[16:30:54] <taiden> yeah see
[16:30:59] <taiden> i uploaded the version i was working with
[16:31:06] <taiden> where it says g40 it SHOULD say g42
[16:31:11] <JT-Shop> ah ok
[16:31:24] <taiden> i forgot to fix it before i put it on pastebin
[16:32:06] <JT-Shop> try a position somewhere other than X0 Y0 before the G42 that is long enough to get into the compensated position
[16:32:29] <JT-Shop> G0 X1
[16:32:31] <JT-Shop> G42
[16:32:36] <JT-Shop> G0 X0
[16:33:02] <taiden> so put it at safe zero and then turn it on?
[16:35:43] <JT-Shop> well the move from the current location in X-Y must be long enough for the tool to be put in the compensated position so generally longer than the radius of the tool
[16:35:58] <JT-Shop> your first move is a Z only move and that won't work
[16:36:48] <jdh> I CAM'ed a counterbore that came did the Z plunge on the edge of the counterbore radius. It left the counterbores with a fairly large tool mark where the Z plunged. I figured it could be tool flex, spindle flex, backlash, or just a CAM failure.
[16:37:02] <jdh> s/came//
[16:37:34] <taiden> alright I see now
[16:37:37] <taiden> we'll give it a shot
[16:38:45] <taiden> "straight feed in concave corner cannot be reached by the tool without gouging"
[16:38:52] <taiden> near line 39 which is this line:
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[16:39:23] <taiden> ( 2nd inner radius )
[16:39:23] <taiden> G1 X-0.875 Y0 Z0 ( cut to helix start )
[16:39:24] <taiden> G1 X-0.875 Y0 Z0 ( cut to helix start )
[16:39:24] <taiden> G2 I0 J0 Z-1.1 P11 ( rough middle radius - depth 1.1" - DOC 0.1" )
[16:39:24] <taiden> G2 I0 J0 X0.875 Y0 ( finish bore base )
[16:39:24] <taiden> G2 I0 J0 X-0.875 Y0
[16:39:32] <taiden> sorry that's ridiculous
[16:39:35] <taiden> never doing that again
[16:39:52] <taiden> line (rough to middle radius)
[16:40:18] <taiden> so I guess you can't drop with radius compensation on?
[16:42:05] <JT-Shop> I'm not sure
[16:42:11] <taiden> this is awkward
[16:42:41] <taiden> alright im saying forget tool comp for now
[16:42:42] <Nick001> any current info on driving a dc motor with linuxcnc and a L298 chip?
[16:42:47] <JT-Shop> did you get the first part to work?
[16:42:58] <cradek> do you have the same G1 line in there twice? are you in G90? if so that's maybe the mistake
[16:43:27] <cradek> it's hard to judge from this program fragment what's going on
[16:47:00] <JT-Shop> cradek: can you make a Z only move while comensation is on?
[16:47:06] <JT-Shop> I assume you can
[16:48:09] <cradek> sure
[16:49:12] <cradek> the first G2 with I0 J0 seems weird too unless maybe you're in G90.1 mode
[16:49:48] <JT-Shop> yea, he is in G90.1 mode
[16:51:42] <cradek> is there a link to the full program?
[16:52:13] <JT-Shop> taiden: can you pastebin the full program?
[16:53:39] <taiden> yeah one sec
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[16:53:46] <taiden> it's all a cluster*** no
[16:53:47] <taiden> w
[16:54:08] <taiden> actualyl
[16:54:12] <taiden> guys that is the entire program
[16:54:17] <taiden> oh
[16:54:30] <taiden> this is rough doing this over the internet one second
[16:55:27] <taiden> http://pastebin.com/1PfKd0JW
[16:55:29] <taiden> thanks for the help
[16:56:29] <taiden> i've made so many changes that some of my comments are wrong
[16:56:49] <andypugh> I think you probably need a G43
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[16:58:07] <taiden> i'm not sure
[16:58:12] <taiden> this is my first gcode program
[16:58:54] <andypugh> G43 loads the tool lengths for the current tool (G43 Hn loads the tool length offsets for a different tool)
[16:59:08] <taiden> Oh
[16:59:26] <taiden> I thought emc2 handled that when you tell it to change tools
[16:59:31] <taiden> but you knw what they say a bout assuming
[16:59:38] <andypugh> So it might be that the interpreter thinks your tool diamter is something other than the tool-table diameter fo that tool.
[16:59:56] <cradek> since you're leaving comp on when you go from cut to cut, you're making corners that you aren't thinking about. line 69->81 makes a corner and line 81's move is only 0.1" long (less than the tool radius). then you make a corner with lines 81->83
[17:00:08] <andypugh> The docs are unclear. Thay do say that G42 uses the diameter of the laded tool, to I might be wrong.
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[17:00:09] <IchGuckLive> Hi all
[17:00:33] <cradek> when moving from the cut ending at 69 to the one starting at 81, perhaps you should do an exit move, then turn off comp, then position yourself for another entry, then turn comp on and enter, continue
[17:01:04] <andypugh> I habitually put a G43 on every M6 Tn line. But That isn't necessarily always the correct thing to do.
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[17:01:42] <cradek> the actual problem is line 81 being a very short move (in XY) but the real fix is to systematically exit and enter your cuts so you don't end up making weird corners
[17:01:42] <taiden> i'm cutting so deep that i can only rise out of the cut
[17:02:18] <taiden> so do you mean to say to only plunge and to not ramp in
[17:02:47] <cradek> no, ramping in is fine, but you should turn on comp and do an entry move before you do the ramping
[17:03:50] <taiden> i'm not following
[17:03:56] <taiden> i thought you said to turn off comp for entering
[17:04:13] <cradek> no, please reread
[17:04:22] <taiden> alright i see what you are saying now i think
[17:04:52] <cradek> a comp entry move isn't necessarily the tool entering the work, it's changing from nominal to compensated path in a controlled way
[17:05:08] <cradek> in fact this is almost always OUTSIDE (not touching) the work
[17:05:15] <taiden> alright
[17:05:22] <taiden> i may need to just try it to really understand
[17:05:32] <cradek> it's hard to explain but easy to see once you "get it"
[17:05:53] <taiden> so lets say i have G42
[17:06:03] <taiden> and im at X0 Y0 Z0
[17:06:27] <taiden> then i do: G1 X-.5 Y0 Z0
[17:06:27] <cradek> do you mean 0,0,0 is the nominal programmed point?
[17:06:31] <cradek> hang on
[17:06:46] <taiden> 0,0,0 is the center of the surface of my part
[17:06:55] <taiden> that way all my arcs are about 0,0
[17:06:59] <cradek> if you're in G42 and your nominal programmed point is 0,0,0 -- you don't know WHERE the tool is because it depends on the directions of the previous and following moves
[17:07:11] <taiden> yeah thats waht i was going to get at
[17:07:23] <taiden> how can i set up my initial plunge to be accurate
[17:07:25] <cradek> you have to think about the corners that are made by consecutive moves
[17:07:59] <taiden> i figured: if it was moving in a straight line, it would go to the final point minus 1 tool radius
[17:07:59] <cradek> programmed points don't mean much, because you're beside the programmed path and going inside/around the programmed corners
[17:08:12] <cradek> NO, it depends on the following move
[17:08:18] <taiden> but it appears it travels to the right side of the point specified
[17:08:27] <cradek> it depends on the following move
[17:08:35] <taiden> alright so it looks ahead
[17:08:45] <taiden> instead of just dumbly following what we ask it to do
[17:08:59] <cradek> yes, it has to, because it has to stop short for inside corners
[17:09:02] <taiden> yeah
[17:09:05] <taiden> fair enough
[17:09:25] <cradek> in fact look at your program near line 73.
[17:09:27] <taiden> so then how about this.. is there any way to make that move while still using the values of the inside radius?
[17:09:46] <cradek> that move does NOT make a corner at all, the corner is made by lines 69 and 81
[17:10:11] <taiden> i understand
[17:10:16] <taiden> thank you
[17:10:27] <cradek> so when line 69 is read, no move happens. line 73, still no move because it doesn't know where the endpoints are. finally at line 81 all those endpoints can be determined and then moves 69 and 73 are issued (but not 81 yet!)
[17:10:40] <IchGuckLive> http://mechmo.de/elek5_2012.jpg %achsis elektronik asembled Today
[17:10:42] <cradek> you can even do this in MDI and see it work
[17:10:52] <taiden> alright i will play with that
[17:10:54] <taiden> although
[17:11:10] <taiden> if i cannot just tell it to move to the drop in point using the outer radius numbers
[17:11:27] <taiden> there's no point in my using tool comp because the reason was to make reading and editing the code easier
[17:11:52] <IchGuckLive> Cycles cand be done in G42/41 Mode
[17:12:13] <cradek> tool comp is good at cutting outside and inside a path. you're kind of doing slotting here, where you don't have any freedom of movement to enter and exit
[17:12:17] <IchGuckLive> taiden: witch Linuxcnc are you one ?
[17:12:43] <IchGuckLive> is there already the Grid showiung ?
[17:12:43] <cradek> so your remedies are to do all your entry/exit above the work with extra moves, or not use comp for this kind of task
[17:12:47] <taiden> i'm using 2.5
[17:12:50] <taiden> on hardy
[17:13:10] <IchGuckLive> we did this for people like You or my 8000 students a year
[17:13:21] <cradek> I think useful-subroutines uses comp in this way (extra moves above the work for entry)
[17:13:28] <taiden> yeah
[17:13:29] <cradek> useful-subroutines.ngc I mean
[17:13:35] <IchGuckLive> are you now on a ubuntu
[17:13:38] <taiden> yes
[17:13:45] <taiden> to be honest is houldn't really be complaining
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[17:13:58] <IchGuckLive> taiden: this is to see what this G42/41 does
[17:13:58] <taiden> i already turned a 3 hour job into a 4 minute job with my cnc router
[17:14:09] <cradek> awesome
[17:14:31] <cradek> but did you spend longer than 2h56 programming it? :-)
[17:14:33] <IchGuckLive> taiden Hardy or lucid or non realtime
[17:14:43] <IchGuckLive> now running
[17:14:54] <taiden> haha yes i did but i will be running the program probably 200 times in the next month or so
[17:14:59] <IchGuckLive> http://buildbot.linuxcnc.org/
[17:15:07] <IchGuckLive> taisden pull the master
[17:15:07] <taiden> so you can math out the time saved if you like :)
[17:15:23] <cradek> aha then you sure win!
[17:15:23] <taiden> it is hardy from the livecd
[17:15:31] <taiden> with an update to 2.5
[17:15:51] <cradek> bbl
[17:15:55] <taiden> pycam wanted 30 minutes and the result was poor!
[17:15:57] <IchGuckLive> the master got a grid beond the movinglines
[17:16:24] <taiden> how do you turn it on?
[17:16:27] <IchGuckLive> so you can messure out where it actuly is moving centerline
[17:16:55] <IchGuckLive> it is not in 2.5 as i think
[17:17:08] <taiden> alright i will look into it
[17:17:12] <taiden> thanks so much IchGuckLive
[17:17:25] <taiden> i have to go upstairs to my comfy comupter so i can rewrite this
[17:17:34] <IchGuckLive> taiden: is ther in VIEW a GRID showing
[17:17:57] <taiden> yeah i do not have that
[17:18:00] <taiden> i think i'd have to update
[17:18:04] <IchGuckLive> taiden: be carfull with the in and outlines on CRC
[17:19:56] <IchGuckLive> cradek: did you see the elektronic board i made today
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[17:27:06] <IchGuckLive> id leave today early nice sunshine here going BBQ
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[17:28:28] <JT-Shop> I picked up a 50lb sack of sweet onions the other day... french onion soup tonight :-)
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[17:30:00] <Jymmm> JT-Shop: 50lb sack... single serving size?
[17:30:11] <JT-Shop> yea
[17:30:18] <Jymmm> =)
[17:30:28] <Jymmm> thats a big ass pot!
[17:30:49] <JT-Shop> 40 cents a pound by the sack and Made in USA!!!!!!
[17:31:33] <JT-Shop> big too over 1lb each
[17:31:51] <Jymmm> Yeah, inion by the sack are REALLY REALLY CHEAP
[17:31:53] <andypugh> So, not actually French Onion soup then?
[17:31:54] <Jymmm> onions
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[17:32:22] <Jymmm> andypugh: MADE IN CHINA onions
[17:32:36] <jdh> you should try DX onions with free shipping.
[17:33:26] <Jymmm> Free lead in every bag!
[17:33:35] <Jymmm> extra minerals!
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[17:34:57] <Jymmm> Got an erector set for $10
[17:35:29] <Jymmm> well, a clone. (c) 1914, 1915
[17:35:38] <Jymmm> and the original manual
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[17:37:32] <JT-Shop> SEM Onion Soup
[17:37:53] <Jymmm> sem?
[17:38:34] <JT-Left> aww taiden left and wrote a cute little spiral using comp http://pastebin.com/4nrSkRt5
[17:38:46] <JT-Shop> South East Missouri
[17:38:54] <JT-Shop> Swamp East Missouri
[17:39:01] <Jymmm> Swapsouri?
[17:39:05] <JT-Shop> yea
[17:39:09] <Jymmm> ;)
[17:39:54] * JT-Shop reads back and yea I have a pot big enough for 150lbs of onions if I want
[17:40:17] <JT-Shop> 25 gallon SS Mega Pot
[17:40:55] <JT-Shop> http://i47.photobucket.com/albums/f163/johnplctech/Boil%20Pot/BP03.jpg
[17:41:37] * JT-Shop thinks it is time to pull the CB out of the smoker and take a nap while it cools down
[17:43:02] <Jymmm> JT-Shop: heavy bottom on that pot?
[17:43:29] <Jymmm> JT-Shop: and did oyu make that SS stand?
[17:44:09] <Jymmm> JT-Shop: and it's way too clean, has that burner ever been used?
[17:55:23] <andypugh> I wonder if you could CNC both axes of this? http://www.ebay.co.uk/itm/230812048957
[17:57:47] <andypugh> I am actually rather tempted.
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[18:11:04] <FinboySlick> andypugh: I think it's worth a shot.
[18:11:23] <FinboySlick> Looks beefy enough to give you a rigid setup too, but I think backlash might be an issue.
[18:11:39] <andypugh> I need to imagine how big it is too.
[18:17:12] <andypugh> I think it is probably too big for my machine.
[18:17:15] <Tom_itx> swampsoup
[18:17:24] <andypugh> I have 9" between the bottom of the collet chuck and the table.
[18:17:56] <andypugh> So, if that has a 7" centre height...
[18:17:56] * Tom_itx matches andypugh's 9 and raises 10
[18:18:17] * Tom_itx takes off his poker hat
[18:21:29] <Tom_itx> that wouldn't leave much room for tooling or material andy
[18:22:19] <andypugh> Yes, so I think someone else can have it.
[18:29:26] <Loetmichel> re @ home
[18:33:34] <Loetmichel> *grrr, thats SATURDAY and i am coming home from the company at 20:30.... and my keyboard is dead... that was a bit much aplle "sprite" yesterday... good that the modelM have plugs on the keyboard side of the cable and i have a few spare... *Throws dirty one in the dishwasher* :-)
[18:41:53] <jdh> anyone tried WeberSystems cad/cam thing?
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[18:57:31] <archivist> that would just fit on my horizontal mill
[18:59:01] <archivist> andypugh, with an outrigger plate! http://www.collection.archivist.info/archive/DJCPD/PD/2012/2012_06_15_Adcock_Shipley/IMG_1249.JPG
[19:00:01] <archivist> non rotating angle version hanging outside the working envelope
[19:00:40] <archivist> just get some inch plate
[19:00:52] <andypugh> It's a little harder to outrig vertically on my machine (The Deckels are set up for it, though)
[19:01:37] <andypugh> That AS has a certain solidity to it.
[19:02:20] <archivist> it is brick built shit house style
[19:03:19] <archivist> after a hard days fight I got the front wheel bearing out
[19:04:42] <archivist> idiot in the past left the circlip out so the wheel could have come off if the interference fit was bad
[19:07:24] <andypugh> That could have been disconcerting.
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[19:08:28] <archivist> had it happen with rear half shaft bearing failure on a landrover so I have "experience"
[19:09:01] <cei> What is the hal syntax to invert a pin?
[19:11:49] <Connor> input or output ?
[19:11:49] <cei> Trying to adapt to an inverted limit switch
[19:11:53] <cei> input
[19:12:43] <andypugh> cei: You don't invert inputs, you use the input-not pin instead
[19:12:59] <Loetmichel> How true, how true.... http://9gag.com/gag/4474920 ;-)
[19:13:02] <cei> Ahh Thank you
[19:13:41] <cei> That did it
[19:14:29] <cei> :D
[19:15:16] <Connor> http://www.cnczone.com/forums/attachment.php?attachmentid=162149&amp;d=1340478621
[19:15:23] <Connor> http://www.cnczone.com/forums/attachment.php?attachmentid=162150&amp;d=1340478627
[19:15:30] <Connor> http://www.cnczone.com/forums/attachment.php?attachmentid=162151&amp;d=1340478635
[19:15:35] <Connor> http://www.cnczone.com/forums/attachment.php?attachmentid=162152&amp;d=1340478641
[19:15:52] <Connor> My stepper covers. Painted, engraved, and installed. :)
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[19:16:55] <andypugh> Loetmichel: http://www.snopes.com/politics/soapbox/schoolrules.asp
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[19:18:08] <andypugh> Connor: Pretty.
[19:18:42] <andypugh> Though I don't like that particular style of motor mount. Even though it is rigid and effective and easy.
[19:19:25] <Jymmm> andypugh: the stilts?
[19:20:50] <Jymmm> Connor: noce job on the covers, but whay the connector facing the same direction as the shaft?
[19:20:52] <Jymmm> nice
[19:21:10] <Loetmichel> andypugh: regardless of who said it first, its SO true!
[19:21:30] <Connor> Jymmm: Protects them.
[19:22:17] <Connor> andypugh: What style of motor mount do you like ?
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[19:23:14] <andypugh> I have always tended to use a toothed belt, quite often with the motor lying back along the screw.
[19:23:45] <Connor> Jymmm: The way they are done, you can't bang into the connectors.. I thought it was better way to go.
[19:24:01] <Connor> andypugh: Ah. You mean direct drive vs belt.
[19:24:04] <Jymmm> ah
[19:24:32] <andypugh> https://picasaweb.google.com/lh/photo/abzo-Io3-DMkbvox4DLo19MTjNZETYmyPJy0liipFm0?feat=directlink for example.
[19:25:14] <Connor> andypugh: This style is a bit cheaper. At some point, I might belt drive the Y. But, this was just to get me going.
[19:25:18] <andypugh> This is partly because my garage is small, though.
[19:25:20] <cei> Wouldn't that introduce more points for failure?
[19:25:46] <Connor> The belt can act as a "fuse" in case you crash.
[19:25:51] <Connor> which is a GOOD thing.
[19:26:04] <cei> I see
[19:26:04] <andypugh> cei: Yes. It isn't technically better, it just looks a little prettier.
[19:26:05] <Connor> andypugh: My shop is tiny. 11' x 7'
[19:26:07] <Jymmm> stepper woould/should stall befor then =)
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[19:27:01] <frallzor> yoyoyo
[19:27:07] <Connor> okay. Time to go get lunch. Back later. :)
[19:27:33] <frallzor> John Connor, Im here for you
[19:27:47] <frallzor> *Arnold Accent*
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[19:30:34] <frallzor> anyone around into metal breaking?
[19:33:00] <archivist> what definition of breaking
[19:33:19] <frallzor> bending
[19:34:08] <archivist> bending allowances in textbooks just work
[19:34:09] <frallzor> i noticed I dont get the fit I want on my machined parts and figures I'd give it a go to get it spot on, is there a nice "formula" to get the K-factor?
[19:34:13] <JT-Shop> frallzor: yea
[19:34:42] <JT-Shop> oh, I'm not that much into bending
[19:34:48] <andypugh> I think it is "braking" for bending
[19:35:23] <JT-Shop> yea
[19:35:28] <andypugh> I tend to let my CAD package do it. Tell it to make the flat pattern, and bend on the lines. Works every time :-)
[19:35:29] <frallzor> I know its called a brake, just figured it sounded better breaking than braking =)
[19:35:34] <archivist> breaking is scrapping
[19:35:54] <frallzor> I just assumed flat material = unbroken
[19:36:01] <frallzor> and bend = broken, scrap =P
[19:36:05] <frallzor> but good scrap
[19:36:24] <frallzor> andypugh I dont trust my software
[19:36:32] <frallzor> it relies on the k-factor
[19:36:42] <frallzor> which I just use the default setting
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[19:38:46] <frallzor> but I might have entered some manually and some using tables it seems, might try to set all to tabled settings
[19:40:07] <archivist> bending is pretty much known art, defaults will probably be right unless your radius's are off
[19:41:11] <frallzor> could be a bad bend too, hard to know
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[20:25:22] * JT-Shop looks for his sous chef hat
[20:26:28] * Tom_itx smells the onions cooking way over here
[20:27:49] <JT-Shop> lol, gotta slice them first
[20:28:02] <syyl_ws_> you could use a chopsaw
[20:28:23] <JT-Shop> yes, but the tears from using a chopsaw would be too much
[20:35:28] <andypugh> I chopped a 50lb bag of onions once. It really wasn't much fun.
[20:43:53] <DJ9DJ> gn8
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[20:55:53] <JT-Shop> that went well chopped 4lbs of onions and did not bleed at all
[20:58:00] * JT-Shop reads an auction flier and noticed this "Most Items New or Used"
[20:58:13] <JT-Shop> I wonder what the rest of the items are?
[20:59:13] <jdh> newly used?
[20:59:40] <JT-Shop> or "used but good" and I've seen that marked on boxes of parts
[21:07:22] <andypugh> JT-Shop: Old and Unused?
[21:07:56] <JT-Shop> that's a possible condition
[21:08:18] <jdh> new old stock
[21:14:02] <JT-Shop> seems the 15Kw gen is wired up for WYE with a bonded neutral
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[21:51:04] <JT-Shop> new enclosure mounted on the generator... getting there
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[21:54:29] <Tom_itx> good and used
[21:58:49] <alex4nder> re..
[22:20:00] <ReadError> g10 cuts pretty awesome
[22:20:21] * jthornton smells onions cooking
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[22:24:43] <_abc_> Updated patches to geda-pcb, new features for milling (routing) pcbs, see peter5.50webs.com/free
[22:25:11] <_abc_> The patches create simple gcode output just perfect for simple parsers like those implemented in atmegas ;)
[22:25:19] <_abc_> Let me know what you like/hate
[22:27:56] <Jymmm> Breastesess/Breast Cancer
[22:29:30] <Tom_itx> sardines
[22:29:57] <Jymmm> Tom_itx: is that a like or a hate?
[22:30:20] <Tom_itx> strong dislike
[22:31:26] <Tom_itx> i sure wish i had a die i could punch these holes out
[22:31:47] <Tom_itx> out to drill and file...
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[22:35:04] <Jymmm> Um, okey, so... If you are to hang this in the window so 1) it can be solar charged, 2) bad guys can see/read the "warning" on it, 3) to detect vibration... What stops a bad guy from just taping over the solar panel and come back a week or so later??? http://www.techkomaid.com/security/solaralarms/S096.html
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[22:35:57] <jthornton> .44 magnum works for me
[22:36:07] <Tom_itx> they are seriously not that bright
[22:36:08] <jthornton> they never come back
[22:36:21] <Tom_itx> jthornton, they never leave
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[22:36:33] <jthornton> well... yea
[22:36:40] <Tom_itx> handy having a backhoe
[22:36:52] <jthornton> hehe
[22:36:54] <Jymmm> jthornton: Yeah, but then you gotta clen up the blood, hide the body(s) (though, you do have a tractor and live in swapsurri)
[22:37:37] <jthornton> tractor, backhoe, dozer... makes short work of it
[22:37:44] <Jymmm> I'm surprised gators won't eat dead human flesh though.
[22:39:09] <Jymmm> I got one of these for $10 today, and I'm SERIOUSLY DISAPPOINTED in it, specifically the tapered bottom 1" too short side water bottle pockets... http://www.youtube.com/watch?v=PR7hrEkJ1jU
[22:39:45] <Jymmm> It's $70 MSRP too! about $50 street
[22:40:15] <ReadError> can wd40 be used for cutting fluid?
[22:40:19] <ReadError> or too flamable?
[22:41:17] <Jymmm> ReadError: no cooking or other oil available
[22:41:36] <ReadError> i do have some red colored cutting fluid i think
[22:41:41] <ReadError> its just some cheap stuff from lowes
[22:41:46] <Jymmm> beware of cooking oilgoing rancid
[22:41:55] <syyl_> wd40 is ok
[22:41:57] <ReadError> i also have some 3-in-1
[22:42:00] <Jymmm> wd40 could work, in a pinch
[22:42:04] <syyl_> works good for aluminum
[22:42:09] <Jymmm> but it is flammable
[22:42:16] <syyl_> pff
[22:42:24] <Jymmm> 3in1 good stuff
[22:42:40] <ReadError> im cutting some 0.090 aluminum
[22:42:45] <Jymmm> syyl_: you never made a torch from wd40?
[22:42:46] <ReadError> im going to try to do it in 2 levels this time
[22:42:52] <syyl_> i use spiritus for aluminum...
[22:43:03] <syyl_> never had a fireball around the machine
[22:43:09] <Jymmm> I use tapping/cutting fluid =)
[22:43:21] <Jymmm> syyl_: you havent' tried hard enough then =)
[22:43:52] <syyl_> http://www.youtube.com/watch?v=NP4sDX87JE8
[22:43:59] <syyl_> see the mistcooling?
[22:44:03] <syyl_> thats spiritus
[22:44:15] <syyl_> no problem
[22:44:26] <andypugh> White Spirit?
[22:44:49] <syyl_> uhm no
[22:45:22] <syyl_> http://en.wikipedia.org/wiki/Ethanol
[22:45:27] <syyl_> pure
[22:45:46] <andypugh> I just found that, by looking at de.wiki then switching to en.wiki
[22:46:15] <andypugh> I think paraffin/white spirit/stoddard solvent work too.
[22:46:35] <syyl_> yeah, but fogged paraffine oil can be nasty
[22:46:55] <syyl_> ruins your lungs
[22:47:04] <syyl_> the ethanole only makes you drunk ;)
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[22:49:19] <andypugh> all three of those are OK for fire-breathing with
[22:49:52] <syyl_> hmm
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[22:50:54] <syyl_> right on the topic, i welded up my cooleant tank today
[22:50:55] <syyl_> :D
[22:50:56] <syyl_> https://dl.dropbox.com/u/24396704/IMG_0596.jpg
[22:51:15] <syyl_> yes, i have a wooden welding table ;)
[22:51:16] <andypugh> Pretty
[22:51:28] <andypugh> I need to clean out my coolant tank.
[22:51:31] <andypugh> Any tips?
[22:51:51] <rob_h> wet and dry vacume ;)
[22:51:57] <andypugh> Imagine that it hasn't been used for decades, and contains mainly way-lube with a hint of rancid coolant..
[22:52:34] <andypugh> So, perhaps I should rent a vacuum..
[22:52:43] <syyl_> friend of mine recommendet natron
[22:52:44] <rob_h> haha yea dont use the wifes i guess
[22:52:49] <syyl_> to clean out the tanks
[22:53:19] <rob_h> i then always put a bucket or two of jeyes fluid in the tank and pump it,. that kills lal the bugs i find
[22:53:32] <rob_h> other wise the next coolant i find goes off pritty quick from the left over bugs
[22:53:41] <syyl_> the pump works, too
[22:53:41] <syyl_> https://dl.dropbox.com/u/24396704/IMG_0599.jpg
[22:53:42] <syyl_> :D
[22:53:51] <rob_h> jeyes fluid as in mixed.. not neat buckets.. or that might be rather costly
[22:55:16] <andypugh> syyl_: That looks pretty good
[22:55:46] <syyl_> thanks :)
[23:05:35] <jthornton> rob_h, what is jeyes fluid?
[23:06:22] <andypugh> http://en.wikipedia.org/wiki/Jeyes_Fluid
[23:06:43] <jthornton> andypugh, I pump what ever is in there with the coolant pump to a bucket then drain the rest
[23:06:53] <rob_h> quite a strong disinfectant
[23:07:29] <jthornton> it even kills scarlet fever and dropsy
[23:07:46] <andypugh> It's a good thing to pour down a sewer before unblocking it. It might not help, but is smells a lot cleaner
[23:07:51] <jthornton> maybe similar to lysol or something
[23:08:26] <archivist> sewage works will be hating you for killing their bugs
[23:08:33] <jthornton> lol
[23:08:44] <andypugh> We got away with it.
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[23:08:53] <jthornton> dang onion soup is smelling wonderful
[23:08:59] <andypugh> And that sewer doesn't go anywhere near a sewage works
[23:09:14] <andypugh> In fact, we have no real idea _where_ it goes :-)
[23:09:35] <archivist> jthornton, I used to volunteer at a stem sewage pumping station next to a live one, we learnt a lot
[23:09:42] <archivist> steam
[23:09:46] <andypugh> Jeye's fluid goes white in water, just like coolant.
[23:09:53] <jthornton> I imagine you did
[23:10:17] <jthornton> so water soluble what ever it is
[23:11:12] * jthornton runs back to the cocina to stir...
[23:11:31] <Jymmm> archivist: you might appreciate this http://www.youtube.com/watch?v=dx-ndeBo8Ng&feature=endscreen&NR=1
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[23:51:56] <Tom_itx> 3 down 4 to go
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